Attachment for micrometer-calipers.



G. P. KLI'NE. ATTACHMENT FOB. MIGROMETER OALIPERS; APPLICATION rum) APB.Z 2, 1912. RENEWED we is, 1913.

' 1,074,552. Patented Spt.30,1913.

nbawtbz ewf'ge P15761426,

GEORGE P.'KLINE, or MoLinE, ILLINOIS.

ATTACHMENT FOR MICROME'IER-CALIPERS.

Specification of Letters Patent.

Patented Sept. so, a

Application filed April 22, 1912, Serial No. 6921257. Renewed August 19, 1912. serial'no. tastes.

T all whom it may concern:

' Be it known that. I, GEORGE P. KLINE,

of Moline, in the county of Rock Island and State of Illinois, have invented certain new bo'dv and insure accurate measurement.

And a further objectis to provide a centering support which will be applicable to' micrometers now "in general use without material alteration.

In .the accompanying drawings Figure is an elevation of a micrometer caliper with my support applied thereto. I Fig. 2 is a similar view at right angles to Fig. 1'.- Fig. 3 is a sectional view of the support. F'igl 4 is' a view in perspective. a ,ldeferring to the drawings, 1 designates a micrometer of ordinary form having the usual abutment point 2 and an arm 3. within a bore 4 of which is fitted a stud.5 of a holder 6. The latter has a longitudinal groove 7, which is shown as being flared or of dove-tailed formation in cross-section to receive two correspondingly formed triangularly-shaped supports 8 and 9. Of course the groove and the bases of the supports may have any correspondingformation. The outer projecting ends of these supports are beveled and designed to' fit within, grooves of the threaded body to be measured. The supports form a restfor such'body, and by engagement with the threads thereof adjust themselves 'to the pitch of the latter, insuring a careful adjustment of the work so that .an accurate measurement may be obtained. To prevent dis-. engagement of the supports from the holder. at the ends thereof I provide stop pins 10. There is suilicient play of the supports between the pins to permit them to readily adjust themselves to grooves of diiferent pitch.

The advantages of my invention will -base and two oppositely disposed thread engaging supports both of whioli'are slidably mounted on said base so as to be free to be moved in opposite directions. by the thread of the boltbeing calipered.

2. In a micrometer-caliper, a detachable base having a grooveextending longitudi- 'nally thereof, and two oppositely disposed thread-engaging supportsboth of which are slidable in said grooveso as do be free to be moved in opposite directions by-the thread of thebolt being calipered.

3. In a micrometer-caliper, a detachable base having a groove, means for securing said base to the caliper, and oppositely movable thread-engaging supports in' said base, said asupports being capable of said adjustment by engaging the threads of the .work to be calipered.

4. In a micrometer caliper having an arm, a detachable base having a flared groove, means for securing said base to said arm, longitudinally adjustable thread-engaging supports mounted on said base and flared at their lower ends to fit in Said groove, and stops on said base for-limiting the move ments of said support.

5. In a micrometer-caliper having arr arm, a detachable base having a flared groove, means for securing said base to said arm,

lti'ngitudinallyf adjustable supports mounted on said base and flared at their lower ends to it nrsaid groove, each supportbeing of triangular-formation, and stops on said base GEORGE P. It .INE. 

